17.05 - Example: UPDATE Using an SQL UDF Invocation in the SET and WHERE Clauses - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Manipulation Language

Advanced SQL Engine
Teradata Database
Release Number
Release Date
January 2021
Content Type
Programming Reference
Publication ID
English (United States)
Assume you have created an SQL UDF named value_expression. The following example updates table t1 using the result of value_expression when it is passed values for columns a1 and b1 to update columns a1 and b1 for rows where the invocation of value_expression using the values for columns c1 and d1 are greater than 5.
     UPDATE t1
     SET b1 = test.value_expression(t1.a1, t1.b1)
     WHERE test.value_expression(t1.c1, t1.d1) > 5;